490 valve spring kit features OD springs with steel top collars. Interference fit to reduce harmonics and control spring surge. Springs have 20% more pressure than stock. No machining required for installation. Use with stock lift cams to.
The item "Manley Valve Spring. 490 Lift Top Collars Harley Ironhead Sportster USA Made XL" is in sale since Monday, October 6, 2014. This item is in the category "eBay Motors\Parts & Accessories\Motorcycle Parts\Brakes & Suspension\Other Brakes & Suspension". The seller is "americanclassicmotors" and is located in Zieglerville, Pennsylvania.This item can be shipped worldwide.